810013988281 has 8 divisors (see below), whose sum is σ = 818384303520. Its totient is φ = 801644074368.

The previous prime is 810013988257. The next prime is 810013988309. The reversal of 810013988281 is 182889310018.

810013988281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 810013988281 - 2¹⁹ = 810013463993 is a prime.

It is a super-2 number, since 2×810013988281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (810013986281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5650170 + ... + 5791756.

It is an arithmetic number, because the mean of its divisors is an integer number (102298037940).

Almost surely, 2^810013988281 is an apocalyptic number.

It is an amenable number.

810013988281 is a deficient number, since it is larger than the sum of its proper divisors (8370315239).

810013988281 is a wasteful number, since it uses less digits than its factorization.

810013988281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200663.

The product of its (nonzero) digits is 221184, while the sum is 49.

The spelling of 810013988281 in words is "eight hundred ten billion, thirteen million, nine hundred eighty-eight thousand, two hundred eighty-one".